This knee ice pack is designed with soft plush backing which is comfortable against skin, and transmits soothing coldness to avoid condensation and frostbite without extra towel wrapping. It is recommended to use the plush side in the first few minutes to help the skin gradually adapt to the cold. This large ice pack measures 18.9"X10" with 24.4" elastic straps, ensures full knee coverage, fits knee circumference up to 19". Two adjustable straps make gel ice pack fits your knee snugly and add compression, securing the ice pack in place to free your hands. This knee ice pack can provide 360° knee pain relief for ACL, swelling, sports injuries, muscle aches, bruises, knee replacement surgery, meniscus tear, tendonitis, joint pain. Great gift for those who are suffering knee pain & discomfort. The edage cover prevents the ice packs from leaking, protects the skin from being scratched by the edges after the ice pack is frozen. Not only can be used for knees, the reusable ice packs can also be applied on other parts of the body, such as elbows, wrists, shoulders, thighs and more.